Continuing the discussion from Welcome to our forums! Please introduce yourself :
Rotated pages in the same document has been a feature request but it’s not currently available. You can, however rotate the content on a page. Or you could make two different documents and combine the PDFs in a single document with Acrobat or other PDF editors.
What do you mean by saving text and dimensions into a template. What kind of template are you referring to?
Can you share an example LO file you’ve created?